Yes you can input a signal to LPF and output it to a scope.
And connect refMUx?
Yes, like this for example -
who clock speed it is put to LPF2? for example if the cutoff frequency was 100 Hz
Right click the component, use the wizard to design the
optimal filter for your application.
When you pick the corner frequency and the oversampling clock the column
clock is reported lower left in wizard.
oscilloscope without floating reference, could not it ??
Not sure what you are asking.
If you need to do a floating differential measurement with a oscilloscope
use 2 channels, one channel inverted, mode to add, and you can look
at a voltage that is not ground referenced. There are voltage limitations
and common mode issues to consider and frequency response, look
in scope manual for that information.
I measure one sinusoidal signal with PGA and RefMux of reference by putting the oscilloscope probe on pins the PGA and the RefMux as reference , never measured the signal
Post your project and I will take a look at it.
Some questions -
1) What is signal amplitude, frequency, and DC offset you are feeding into
2) What pins are you trying to do the oscilloscope measurements on ?
Can someone tell me how was the hardware connection for LPF2 to oscilloscope looks like?
What pins should I connect from the board to oscilloscope?
Since you are relatively free in using the internal connections of a PSoC1 we cannot tell you which physical pin you have to connect some signal or device to. Start at the begin of this thread as a help and design your LPF2, use your own connections and configure the pins as you require.
When you get stuck, create an archive (Designer->File->Archive Project) and attach the resulting file to your post.